Flight 214 from Seoul, South Korea was on a direct flight and was landing onto runway 28 at around 11:30 a.m. According to a witness, the plane was just about to land — its landing gear had come down — when the tail of the plane came off.

After wobbling for a minute, it appeared that the aircraft flipped upside down, coming to a stop on runway on it’s back, according to witness Kathy Muhler.

Chopper footage from over the crash showed that the wings were still attached, contradicting the possibility that it rolled over on its back.

When it came to a halt, smoke was pouring from the aircraft. Fire crews responded minutes later, Muhler said.

According to Redwood City Fire Department, three alarms have been called and responding crews are reporting passengers in need of burn treatment.

The National Transportation Safety Board (NTSB) announced it was sending a team of investigators to San Francisco to determine the cause of crash. The team will be lead NTSB chairman Deborah Hersman.

As of noon, all flights into SFO were canceled because of the crash and all roads to the aiport were closed — CHP suggested drivers avoid Hwy 101 and use I-280 instead.

It was unclear when SFO would be re-opened.

David Eun, the executive vice president of Samsung, was on the flight when it crashed and live tweeted his experience.